Table 3.
Dutch population, n (%) | US population, n (%) | Dutch mean T-score (SD)a | US mean T-score (SD) | |
---|---|---|---|---|
Total | 1310 (100) | 3407 (100) | 49.8 (10.8) | 50.0 (10.0) |
Gender | ||||
Male | 691 (47) | 1363 (40) | 50.9 (11.2) | 51.7 (9.7) |
Female | 689 (53) | 2044 (60) | 48.8 (10.3) | 48.9 (10.0) |
Age in years | ||||
18–34 | 282 (22) | 782 (23) | 55.2 (9.5) | 55.1 (8.4) |
35–44 | 214 (16) | 605 (18) | 52.8 (10.5) | 52.0 (9.8) |
45–54 | 199 (15) | 567 (17) | 50.0 (11.5) | 49.0 (10.4) |
55–64 | 279 (21) | 565 (16) | 46.4 (10.1) | 47.5 (10.4) |
65–74 | 280 (22) | 457 (13) | 46.7 (9.6) | 47.2 (9.0) |
75+ | 56 (4) | 431 (13) | 42.6 (9.5) | 45.6 (8.5) |
Distribution-based thresholds (based on SD) | ||||
Within normal limits | 885 (68) | >45 | >45 | |
Mild | 174 (13) | 39–45 | 40–45 | |
Moderate | 217 (17) | 28–39 | 30–40 | |
Severe | 34 (2) | <28 | <30 | |
Anchor-based thresholds (based on self-reported limitations) | ||||
No limitations | 527 (40) | 59.0 (7.0) | ||
Mild | 452 (35) | 48.1 (5.6) | ||
Moderate | 259 (20) | 39.4 (5.7) | ||
Severe | 72 (5) | 30.1 (6.6) |
aHigher scores represent a better physical function.
SD: standard deviation.